| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.12 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.14 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.11 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.07 | USD | 20251125 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.04 | USD | 20251124 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.0 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.0 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.95 | USD | 20251120 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.0 | USD | 20251119 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.03 | USD | 20251118 |